CHS 203x50 GOST · Weight & Dimensions

GOST, cold-formed sections · Circular Hollow Section

Circular Hollow Sections (CHS) are round tubular profiles with the most efficient cross-section for compression. Used for columns, trusses, and architectural structures.

Also known as: Caño estructural redondo (Argentina)

The CHS 203x50 steel profile weighs 188.7 kg/m (126.78 lb/ft). Cross-sectional area: 24,033.184 mm². Moment of inertia Ix = 7,783.447 cm⁴, Iy = 7,783.447 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	50 mm	1.97 in
Diameter (d)	203 mm	7.99 in
Weight	188.7 kg/m	126.78 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	24,033.18 mm²	37.251 in²
Moment of inertia (Ix)	7,783.45 cm⁴	187.00 in⁴
Moment of inertia (Iy)	7,783.45 cm⁴	187.00 in⁴
Elastic section modulus (Sx)	766.84 cm³	46.796 in³
Elastic section modulus (Sy)	766.84 cm³	46.796 in³
Plastic section modulus (Zx)	1,212.12 cm³	73.968 in³
Plastic section modulus (Zy)	1,212.12 cm³	73.968 in³
Radius of gyration (rx)	5.69 cm	2.241 in
Radius of gyration (ry)	5.69 cm	2.241 in